socketcap

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  • February 11, 2013 at 8:25 pm in reply to: grblshield capactitor burned up #3768
    socketcap
    Member

    Alden or Riley,

    Can you please tell me if my grbl shield is repairable?

    February 11, 2013 at 12:12 pm in reply to: grblshield capactitor burned up #3766
    socketcap
    Member

    I checked with mfg of the power supplies today. “TDK lambda” said their power supplies have auto ranging inputs and can accept 90 to 250 volts ac 50/60 hz and have precision regulator circuits on the output.

    So 120 vac input was within limits for this application.

    February 10, 2013 at 9:32 pm in reply to: grblshield capactitor burned up #3764
    socketcap
    Member

    I tested the arduino this evening by itself with out shield connected.

    The normal sound and detection that happens in windows when the usb cable is plugged into it is absent, the surface mount power led is very dim.

    Are the grbl shields repairable?

    Could you or Alden tell me what might have gone bad to cause the component “C1” that is to the left of “J2 and J3” to burn out ? and consequently the arduino too. Perhaps I did something wrong although I am not sure what that might be.

    Is there a certain characteristic/feature in a power supply that might cause C1 to burn out?

    Are there additional circuits that are required that protect the shield and arduino that I am not aware of?

    In your documentation the polarity is pointed out several times and unless my power supply decided on it own to switch places internally, that was not the problem.

    I have been playing with equipment a long time and have never connected anything backwards.

    I had a 12volt fan blowing on the grblshield the whole time.

    I purchased 2 used power supplies that are identical and I was assured that they had 120 volt input voltage requirements but in looking closely (this evening) at the board it is printed 250 volts 6amp input.

    Bummer maybe I did cause this by having 120 fed into a 250 power supply unless that rating means it accepts both. O well hopefully I can get the grbl shield repaired.

    February 8, 2013 at 12:28 pm in reply to: grblshield capactitor burned up #3749
    socketcap
    Member

    I have a 120 to 24 volt dc power supply rated at 10 amps and I adjusted the pot on the power supply to 24 volts exactly.
    I am not sure what the mfg is as it is not in a case with labels. The only writing is on the board indicating the power required on the input, I verified the polarity of the output with a meter and I did not connect it backwards.

    The arduino was powered with the USB cable.

    The arduino power led lights only when the grblshield is dissconnected and the arduino power led is very dim.

    Maybe I am wrong about the arduino, I guess I wont know if its ok until the grblshield is repaired.

    February 7, 2013 at 10:07 pm in reply to: grblshield capactitor burned up #3745
    socketcap
    Member

    oops I spelled capacitor wrong fifty whacks with a wet noodle

    December 2, 2011 at 10:12 pm in reply to: stepper motor suggestions #1847
    socketcap
    Member

    Alden,

    Did my offline e-mail make it to you and Riley?

    November 28, 2011 at 11:30 pm in reply to: stepper motor suggestions #1845
    socketcap
    Member

    I will order a new bipolar 4 lead stepper motor this week to try and if it still wont work after that I would like to send the grbl shield and my arduino to someone and ask if they could please try it at their shop and if they can get it to work, please share with me the combination of parts so that I can replicate it and I promise I wont bug anyone again. I will pay for postage both ways.

    November 28, 2011 at 10:40 pm in reply to: stepper motor suggestions #1844
    socketcap
    Member

    I connected the unipolar motors this evening and left the center taps off, wired one coil to A and B, and the other coil to B and C.

    I turned the pot but I still have no motor movement.

    This motor has this info on it: 4.0 volts/phase
    1.6 amp/phase

    I sent “G0x1000” through the serial terminal window in arduino IDE and it returned ok, with no movement tonight.

    I have a 24 volt/10 amp power supply feeding the grbl shield

    I also have a Pentium 2 shrouded CPU fan ready to blow between the shield and arduino when it needs it in the future 🙂

    November 26, 2011 at 6:21 pm in reply to: Programmed Arduino Chip. #1570
    socketcap
    Member

    Would it be possible to buy the 328 chip with GRBL flashed onto it?

    Or could I mail my Arduino to you folks and perhaps you could flash the existing 328 chip in the arduino?

    Or would the only option be purchase a arduino already flashed?

    I have purchased a AVR Programmer and ruined it as far as I can tell by trying to update the firmware. So I am at a dead end again in my project.

    I am looking forward to using the GRBL shield that I purchased from you, but I am in over my head it seems in getting it running.

    Sincerely ,

    Colin Morris

    November 21, 2011 at 10:40 pm in reply to: tried a few things #1698
    socketcap
    Member

    Thank you very much for the reply’s, I perhaps should have asked some more questions in advance about the process of flashing the chip on the arduino board.

    I am ok with the dedication of the arduino to the grbl code I did purchase it for that.

    Silly me, sorry for the lack of prerequisite process knowledge, There is a programmer I will purchase from Sparkfun and then I might be able to do whats needed to flash the grbl code to it.

    The USB AVR programmer sounds like a plan too me.

    I will have to figure out how to use the github site someday.

    I am really excited about the GRBL shield, after I get beyond this learning curve here it should be a lot of fun , I have messed around some in the past with Parallel port cnc stuff and it was a pain in a different way , I am really looking forward to future USB style fun in the CNC world.

    I have some 8020 aluminum extrusions to use for creating some desktop gantry experiments that would be perfect for the arduino/grbl shield combo.

    Sincerely,

    Colin

    November 20, 2011 at 11:05 pm in reply to: tried a few things #1695
    socketcap
    Member

    http://dl.dropbox.com/u/50339240/avrdude%20response.jpg

    Thanks for the dropbox suggestion

    November 20, 2011 at 10:48 pm in reply to: tried a few things #1694
    socketcap
    Member

    I have tried all the links that you mentioned, I am very computer literate but I am not a programmer so I am not exactly sure what to do with the code from Github, other than save it and try to upload it to the arduino board with “arduino uploader” utility program

    “avrdude.exe: stk500_getsync<>: not in sync: resp=0x00”

    the text above is what I get when I use “arduino uploader” to try and send the latest hex file.

    Is there enough info here to at least think its a software problem and not hardware?

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